Helen

Hello Helen,
If you are referring to the T4 please see below:
T4 - Box 50 — RPP or Differed Profit-Sharing Plan (DPSP) registration number. This is the 7-digit number used for your RPP or DPSP registration.  It does not need to be reported on your income tax return.

Hello,
The CRA considers private health services plan (PHSP) premiums payable to an insurance company to be deductible – and that can include your premiums for your personal health insurance policy that covers you, your spouse or common-law partner or your eligible dependents.
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/lines-33099-33199-eligible-medical-expenses-you-claim-on-your-tax-return/details-medical-expenses.html#prmms

Good day Helen,
You can claim the insurance premium you paid yourself as medical expense, federal (and Quebec if applicable).
Verify your T4 slip (and RL-1 if applicable).
There might be a Box 85 (RL-1, Box 235) with the premium you paid.
If yes, enter the amount in your T4 (or T4/RL-1) page.
 - Box 85 is located at the bottom of the page
 - UFile will then use the amount as Medical expense
If no, enter the amount in the Medical expenses page.